Electrical Regulations
RCD, RCBO, SPD and AFDD Differences
RCDs detect earth faults; RCBOs combine earth-fault and overcurrent protection per circuit; SPDs protect against transient overvoltages; AFDDs detect arc faults.
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RCD, RCBO & SPD Upgrades
Improved protection through residual-current, overcurrent and surge protective devices.
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Knowledge
What Is an EICR?
An EICR is a formal, documented assessment of a fixed electrical installation against BS 7671, recording classified observations and a satisfactory or unsatisfactory outcome.
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What Is Included in an EICR?
An EICR covers the consumer unit, protective devices, circuits, earthing and bonding, and a representative sample of the installation, with observations and test results recorded.
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What Do C1, C2, C3 and FI Mean?
C1 = danger present (immediate action); C2 = potentially dangerous (prompt remediation); C3 = improvement recommended; FI = further investigation required. C1, C2 and FI make a report unsatisfactory.
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What Happens After an Unsatisfactory EICR?
C1, C2 and FI observations must be addressed. A remedial quotation is provided, work is completed, affected circuits are re-tested and electrical certification is issued where required.
Learn moreThis article provides general guidance and distinguishes legislation, British Standards and good practice. It is not legal advice. Always confirm the specific duties applying to your property and tenure.